After a new Rear Diff, new Axle Shaft and Valve Body, my new 2020 S560 is home.
Thread Starter
Member
Joined: Sep 2014
Posts: 139
Likes: 13
GL450
After a new Rear Diff, new Axle Shaft and Valve Body, my new 2020 S560 is home.
My new 6 week old 2020 S-560 is finally home from the shop. Going to press MBUSA Corporate for some kind of compensation to me or MB Financial. Anyone had luck with this?
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 8,139
Likes: 4,363
From: Corona Del Mar, CA
2019 SL450, 2019 E450 Luxury Trim Wagon, 2024 BMW I7 xDrive60
I don’t know about any “after the fact” compensation. I mean if you wanted to buy or lease another new MB, they might offer you some additional discount. You might get them to kick in pre-paid maintenance or something like that. In the end, I’m very happy you got the problem solved, congratulations!
Junior Member
Joined: Aug 2021
Posts: 68
Likes: 11
bicycle
I also took mine to MB of FT. Washington and they replaced my rear diff. Whining was when cruising from 60 to 55. Did replacing valve body solved the harsh shifting problem?
My new 6 week old 2020 S-560 is finally home from the shop. Going to press MBUSA Corporate for some kind of compensation to me or MB Financial. Anyone had luck with this?
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
Senior Member
Joined: Mar 2010
Posts: 477
Likes: 124
2016 S550
My new 6 week old 2020 S-560 is finally home from the shop. Going to press MBUSA Corporate for some kind of compensation to me or MB Financial. Anyone had luck with this?
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
Purchased the car last month and immediately noticed a whining noise above 50MPH and very hard shifting. First dealer kept it for two weeks and replaced the rear diff with no improvement. Told me the tranny was normal and tried to force adapt it. Took it to another dealership MB Ft. Washington and they were absolutely exceptional. Worked with engineering and both issues are gone. There’s still a slight roughness in sport mode but I’m going to put a couple thousand miles on it to see how it adapts.
MBWorld Fanatic!
Joined: Sep 2019
Posts: 3,129
Likes: 1,507
From: U.S.
Current/Last 5-years:GLS;G70;Alpina B8;X7;Accord. Sold:X7,TeslaS;S560;S550,X5;530e;L.Navigator;LS460
Yeah am also curious - It’s often very useful for the community here if the service notes can be posted. My guess would be that they re-did the force adaptation. Force adaptation is VERY tricky. When I lived in NC a few years ago and had my first W222, my dealer in Raleigh wouldn’t allow any tech but one to do Force Adaptation… They had only one tech who knows how to do it the right way - obviously following the TBS or Xentry instructions isn’t enough. Mbenz in Charlotte tried to fix the issue first with no luck. Force Adaptation performed by Matt at Mercedes of Raleigh fixed the issue 100%.
